When a little sodium chloride or borax is sprinkled directly into the flames of a fireplace, colored flames are obtained. This happens because in t...

When a little sodium chloride or borax is sprinkled directly into the flames of a fireplace, colored flames are obtained. This happens because in the atoms of these substances, the excited electrons:


a. Absorb energy in the form of light, neutralizing the nuclear charge and becoming electrically neutral.
b. Return to lower energy levels, returning absorbed energy in the form of light.
c. Receive a quantum of energy and distribute themselves around the nucleus in more internal orbits.
d. Emit energy in the form of light and are promoted to more external orbits.
e. Jump to higher energy levels, overcoming the nuclear charge and originating an anion.